Postscript

From $49

Shopify stores that want SMS built around their store data and are happy to pay per message instead of buying credit bundles.

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Quick overview

Pricing: From $49/month minimum spend ($0.009 per SMS plus carrier fees)
Plans: Usage-based, billed monthly after sending, no contract required. Starter: $0 platform fee, $49 monthly minimum spend, $0.009 per SMS, $0.045 per MMS, 2 opt-in keywords. Growth: $100/month, $0.008 per SMS, $0.03 per MMS, unlimited keywords, live chat and email support. Professional: $500/month, $0.007 per SMS, $0.024 per MMS, API access, dedicated CSM. Enterprise: custom. Postscript AI plan: $699/month (via sales) for AI Shopper products. Carrier fees passed through without markup (average US SMS $0.0033, MMS $0.00799). Dedicated toll-free number included. $100 of credit to use in the first 30 days.
G2 rating: Not yet verified
Comparisons: Featured in 2 comparisons

Key features

SMS and MMS campaigns and automation flows driven by Shopify data
Subscriber collection at Shopify checkout, on landing pages, forms and keywords
Unlimited segments and revenue reporting
Quiet hours that hold messages until waking hours in the subscriber's time zone
Shopper Automations: AI-written one-to-one cart and browse messages (AI plan)

Pros

Low published per-message rates, with carrier fees passed through at cost
Deep Shopify integration, including sign-up at checkout
No contracts, no prepaid credits that expire, no overages
Documented quiet hours handling by state, held until waking hours

Cons

Shopify only: no use for salons, clinics or non-Shopify stores
$49 monthly minimum on Starter, and the page does not explain how it counts against usage
The AI features sit on a $699/month plan
Email is announced but still on a waitlist with no published price

Postscript in our comparisons

Marketing Automation

Best SMS Marketing Software

Pick SimpleTexting if you run a small business or a store not on Shopify and want clear credit pricing. Pick Postscript if you run a Shopify store and text often.

Marcus WilliamsUpdated October 2026

Marketing Automation

Klaviyo alternatives

Switch to Omnisend if you want the closest ecommerce match with published SMS rates. Stay with Klaviyo if you are under about 10,000 profiles and use its store data heavily.

Marcus WilliamsUpdated October 2026